CN107827418A - A kind of superhigh tenacity concrete and preparation method thereof - Google Patents
A kind of superhigh tenacity concrete and preparation method thereof Download PDFInfo
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- CN107827418A CN107827418A CN201711249971.XA CN201711249971A CN107827418A CN 107827418 A CN107827418 A CN 107827418A CN 201711249971 A CN201711249971 A CN 201711249971A CN 107827418 A CN107827418 A CN 107827418A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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Abstract
The invention discloses a kind of superhigh tenacity concrete and preparation method thereof, the concrete is prepared after being mixed in proportion by following raw material：Glass fibre, trimethylolpropane, sulfoaluminate clinker, defoamer, polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid, silicon nanoparticle, nano-calcium carbonate, elastic silicone acrylic emulsion, the N that portland cement, slag as aggregate, steel fibre, silica flour, fly ash micro-sphere, lithium slag, latex, rubber powder, nanometer water adhesive, graphene are modified, the aminopropanoate of N dihydroxy ethyls 3, water, polycarboxylic acid water reducing agent.The concrete of gained of the invention has high compressive strength, high-tensile, and can keep superelevation ductility, possesses good energy dissipation capacity and modulus of elasticity.
Description
Technical field
The present invention relates to building material field, and in particular to a kind of superhigh tenacity concrete and preparation method thereof.
Background technology
Normal concrete is configured by binder materials, thick, thin aggregate and water by proper proportion, then the hardened artificial stone formed
Material.From to concrete section macroscopic view detection, concrete by different sizes and shapes particles of aggregates and it is discontinuous glue
The hydrated cement slurry of knot property medium is formed, in terms of microcosmic angle in micro-structural this two-phase neither equally distributed each other,
Micro-structural is in itself nor homogeneous.The micro-structural of the cement slurry of neighbouring bulky grain aggregate generally with the cement mortar in system or
Mortar ontological existence larger difference, i.e. interfacial transition zone.Because both cement mortar body in concrete and interfacial transition zone contain
There are uneven distribution, different type and quantity solid phase, hole and microcrack, so that concrete is easily by external environment
Influence and cause concrete microcrack to extend, harmful substance intrusion causes concrete deterioration, reduces concrete durability, influences to mix
Coagulate the service life of native structures；The resistance to compression bullet mould of existing concrete is low simultaneously, compression strength and flexural tensile strength also have into
The space of one step lifting.
The content of the invention
It is an object of the invention to provide a kind of superhigh tenacity concrete and preparation method thereof, the concrete of gained has high resist
Compressive Strength, high-tensile, and superelevation ductility can be kept, possess good energy dissipation capacity and modulus of elasticity.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of superhigh tenacity concrete, is prepared by the raw material of following parts by weight：
Portland cement 80-90 parts, slag as aggregate 18-22 parts, steel fibre 13-17 parts, silica flour 13-15 parts, fly ash micro-sphere
20-40 parts, lithium slag 2-3 parts, latex 5-9 parts, rubber powder 13-14 parts, nanometer water adhesive 6-7 parts, graphene are modified
Glass fibre 18-25 parts, trimethylolpropane 1-1.2 parts, sulfoaluminate clinker 0.2-0.3 parts, defoamer 5-7 parts, polyoxy second
Allylic alkylation ether 0.2-0.3 parts, p-methyl benzenesulfonic acid 0.6-0.8 parts, silicon nanoparticle 2.5-8.5 parts, nano-calcium carbonate 7-13 parts, bullet
Property silicone acrylic emulsion 20-30 parts, N, N- dihydroxy ethyl -3- aminopropanoate 5-8 parts, water 30-40 parts, polycarboxylic acid water reducing agent
0.3-0.9 parts.
Wherein, the particle diameter of the rubber powder is 8-10 mesh.
Wherein, in the slag as aggregate slag a diameter of 0.3-0.5mm.
Wherein, the glass fibre and steel fibre that the graphene is modified are formed by long fibre, chopped fiber and middle fiber, its
In, the mass ratio of long fibre, chopped fiber and middle fiber is 1:3:2.The length of the chopped fiber is 5-10 millimeters, the length of middle fiber
Spend 10-15 millimeters, long fibre 15-20 millimeters.
Preferably, it is prepared by the raw material of following parts by weight：
80 parts of portland cement, 18 parts of slag as aggregate, 13 parts of steel fibre, 13 parts of silica flour, 20 parts of fly ash micro-sphere, lithium slag 2
18 parts of glass fibre, the trimethylolpropane that part, 5 parts of latex, 13 parts of rubber powder, 6 parts of nanometer water adhesive, graphene are modified
1 part, 0.2 part of sulfoaluminate clinker, 5 parts of defoamer, 0.2 part of polyoxyethylene alkyl ether, 0.6 part of p-methyl benzenesulfonic acid, nano-silicon
2.5 parts of grain, 7 parts of nano-calcium carbonate, 20 parts of elastic silicone acrylic emulsion, N, 5 parts of N- dihydroxy ethyl -3- aminopropanoates, water 30
Part, 0.3 part of polycarboxylic acid water reducing agent.
Preferably, it is prepared by the raw material of following parts by weight：
90 parts of portland cement, 22 parts of slag as aggregate, 17 parts of steel fibre, 15 parts of silica flour, 40 parts of fly ash micro-sphere, lithium slag 3
25 parts of glass fibre, the trihydroxy methyl third that part, 9 parts of latex, 14 parts of rubber powder, 7 parts of nanometer water adhesive, graphene are modified
1.2 parts of alkane, 0.3 part of sulfoaluminate clinker, 7 parts of defoamer, 0.3 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.8 part, nanometer
8.5 parts of silicon grain, 13 parts of nano-calcium carbonate, 30 parts of elastic silicone acrylic emulsion, N, 8 parts of N- dihydroxy ethyl -3- aminopropanoates,
40 parts of water, 0.9 part of polycarboxylic acid water reducing agent.
Preferably, it is prepared by the raw material of following parts by weight：
85 parts of portland cement, 20 parts of slag as aggregate, 15 parts of steel fibre, 14 parts of silica flour, 30 parts of fly ash micro-sphere, lithium slag 2.5
Part, 21.5 parts of the glass fibre of 7 parts of latex, 13.5 parts of rubber powder, 6.5 parts of nanometer water adhesive, graphene modification, three hydroxyl first
1.1 parts of base propane, 0.25 part of sulfoaluminate clinker, 6 parts of defoamer, 0.25 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.7
Part, 5.5 parts of silicon nanoparticle, 10 parts of nano-calcium carbonate, 25 parts of elastic silicone acrylic emulsion, N, N- dihydroxy ethyl -3- alanine first
6.5 parts of ester, 35 parts of water, 0.6 part of polycarboxylic acid water reducing agent.
Present invention also offers a kind of preparation method of superhigh tenacity concrete, comprise the following steps：
S1, by above-mentioned formula weigh each component；
S2, by the steel fibre weighed, graphene be modified glass fibre be dispersed in water by ultrasonic wave, formed suspension；
S3, by the slag as aggregate weighed, silica flour, fly ash micro-sphere, lithium slag, latex, rubber powder, silicon nanoparticle, nano-sized carbon
Sour calcium, elastic silicone acrylic emulsion are placed in high-speed shearing machine after being mixed evenly, and obtain mixture A；
S4, by the trimethylolpropane weighed, defoamer, polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid, N, N- dihydroxy ethyls -3-
After aminopropanoate, nanometer water adhesive stir under 0.8-1MPa pressure with the suspension of gained, in 0.8-
Mixed material A is added under 1MPa pressure, the portland cement weighed, sulfoaluminate clinker are added after stirring, under normal pressure
Stir, obtain mixed material B；
S5, the water of half by the polycarboxylic acid water reducing agent weighed under 0.6MPa pressure with weighing are mixed evenly, and obtain
Mixed material C；
S6, the mixed material B that the mixed material C of gained is added to gained, with elevator by the mixture of gained after stirring
Material is conveyed into finished product and homogenized in storehouse, by being produced after homogenizing air homogenizing caused by orlop portion.
The invention has the advantages that：
The glass fibre that steel fibre, graphene are modified relies on that shape webbed support system prolongs in concrete without several fibers
Relax and prevent concrete due to early-age plastic crack caused by plastic shrinkage, and traction action can be played in inside concrete,
Further increase the toughness of concrete；Silicon nanoparticle has special network structure, coordinates with nano-calcium carbonate, in concrete
A new network structure is established on the basis of the original network structure of slurry, effectively prevents the expansion of inside concrete micro-crack
Exhibition, improve the bending tensile strength of concrete；On the one hand elastic silicone acrylic emulsion can improve it with the gap inside fill concrete
Impermeability, the high tenacity on the other hand itself possessed impart the stronger mechanical resistant power performance of concrete；Pass through trihydroxy methyl
Propane, defoamer, polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid, N, the collaboration of N- dihydroxy ethyl -3- aminopropanoates use,
Further increase the compression strength of concrete.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further detailed
Explanation.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In following examples, the particle diameter for using rubber powder is 8-10 mesh.The diameter of slag in used slag as aggregate
For 0.3-0.5mm.The glass fibre and steel fibre that used graphene is modified are by long fibre, chopped fiber and middle fiber structure
Into, wherein, the mass ratio of long fibre, chopped fiber and middle fiber is 1:3:2.The length of the chopped fiber is 5-10 millimeters, middle fibre
The length 10-15 millimeters of dimension, long fibre 15-20 millimeters.
Embodiment 1
A kind of superhigh tenacity concrete, is prepared by the raw material of following parts by weight：
80 parts of portland cement, 18 parts of slag as aggregate, 13 parts of steel fibre, 13 parts of silica flour, 20 parts of fly ash micro-sphere, lithium slag 2
18 parts of glass fibre, the trimethylolpropane that part, 5 parts of latex, 13 parts of rubber powder, 6 parts of nanometer water adhesive, graphene are modified
1 part, 0.2 part of sulfoaluminate clinker, 5 parts of defoamer, 0.2 part of polyoxyethylene alkyl ether, 0.6 part of p-methyl benzenesulfonic acid, nano-silicon
2.5 parts of grain, 7 parts of nano-calcium carbonate, 20 parts of elastic silicone acrylic emulsion, N, 5 parts of N- dihydroxy ethyl -3- aminopropanoates, water 30
Part, 0.3 part of polycarboxylic acid water reducing agent.
Embodiment 2
A kind of superhigh tenacity concrete, is prepared by the raw material of following parts by weight：
90 parts of portland cement, 22 parts of slag as aggregate, 17 parts of steel fibre, 15 parts of silica flour, 40 parts of fly ash micro-sphere, lithium slag 3
25 parts of glass fibre, the trihydroxy methyl third that part, 9 parts of latex, 14 parts of rubber powder, 7 parts of nanometer water adhesive, graphene are modified
1.2 parts of alkane, 0.3 part of sulfoaluminate clinker, 7 parts of defoamer, 0.3 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.8 part, nanometer
8.5 parts of silicon grain, 13 parts of nano-calcium carbonate, 30 parts of elastic silicone acrylic emulsion, N, 8 parts of N- dihydroxy ethyl -3- aminopropanoates,
40 parts of water, 0.9 part of polycarboxylic acid water reducing agent.
Embodiment 3
A kind of superhigh tenacity concrete, is prepared by the raw material of following parts by weight：
85 parts of portland cement, 20 parts of slag as aggregate, 15 parts of steel fibre, 14 parts of silica flour, 30 parts of fly ash micro-sphere, lithium slag 2.5
Part, 21.5 parts of the glass fibre of 7 parts of latex, 13.5 parts of rubber powder, 6.5 parts of nanometer water adhesive, graphene modification, three hydroxyl first
1.1 parts of base propane, 0.25 part of sulfoaluminate clinker, 6 parts of defoamer, 0.25 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.7
Part, 5.5 parts of silicon nanoparticle, 10 parts of nano-calcium carbonate, 25 parts of elastic silicone acrylic emulsion, N, N- dihydroxy ethyl -3- alanine first
6.5 parts of ester, 35 parts of water, 0.6 part of polycarboxylic acid water reducing agent.
The embodiment of the present invention additionally provides a kind of preparation method of superhigh tenacity concrete, comprises the following steps：
S1, the formula as described in embodiment 1- embodiments 3 weigh each component；
S2, by the steel fibre weighed, graphene be modified glass fibre be dispersed in water by ultrasonic wave, formed suspension；
S3, by the slag as aggregate weighed, silica flour, fly ash micro-sphere, lithium slag, latex, rubber powder, silicon nanoparticle, nano-sized carbon
Sour calcium, elastic silicone acrylic emulsion are placed in high-speed shearing machine after being mixed evenly, and obtain mixture A；
S4, by the trimethylolpropane weighed, defoamer, polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid, N, N- dihydroxy ethyls -3-
After aminopropanoate, nanometer water adhesive stir under 0.8-1MPa pressure with the suspension of gained, in 0.8-
Mixed material A is added under 1MPa pressure, the portland cement weighed, sulfoaluminate clinker are added after stirring, under normal pressure
Stir, obtain mixed material B；
S5, the water of half by the polycarboxylic acid water reducing agent weighed under 0.6MPa pressure with weighing are mixed evenly, and obtain
Mixed material C；
S6, the mixed material B that the mixed material C of gained is added to gained, with elevator by the mixture of gained after stirring
Material is conveyed into finished product and homogenized in storehouse, by being produced after homogenizing air homogenizing caused by orlop portion.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of superhigh tenacity concrete, it is characterised in that be prepared by the raw material of following parts by weight：
Portland cement 80-90 parts, slag as aggregate 18-22 parts, steel fibre 13-17 parts, silica flour 13-15 parts, fly ash micro-sphere
20-40 parts, lithium slag 2-3 parts, latex 5-9 parts, rubber powder 13-14 parts, nanometer water adhesive 6-7 parts, graphene are modified
Glass fibre 18-25 parts, trimethylolpropane 1-1.2 parts, sulfoaluminate clinker 0.2-0.3 parts, defoamer 5-7 parts, polyoxy second
Allylic alkylation ether 0.2-0.3 parts, p-methyl benzenesulfonic acid 0.6-0.8 parts, silicon nanoparticle 2.5-8.5 parts, nano-calcium carbonate 7-13 parts, bullet
Property silicone acrylic emulsion 20-30 parts, N, N- dihydroxy ethyl -3- aminopropanoate 5-8 parts, water 30-40 parts, polycarboxylic acid water reducing agent
0.3-0.9 parts.
2. a kind of superhigh tenacity concrete as claimed in claim 1, it is characterised in that the particle diameter of the rubber powder is 8-10
Mesh.
A kind of 3. superhigh tenacity concrete as claimed in claim 1, it is characterised in that the diameter of slag in the slag as aggregate
For 0.3-0.5mm.
A kind of 4. superhigh tenacity concrete as claimed in claim 1, it is characterised in that the glass fibre that the graphene is modified
Formed with steel fibre by long fibre, chopped fiber and middle fiber, wherein, the mass ratio of long fibre, chopped fiber and middle fiber is 1:
3:2。
5. a kind of superhigh tenacity concrete as claimed in claim 4, it is characterised in that the length of the chopped fiber is 5-10 millis
Rice, the length 10-15 millimeters of middle fiber, long fibre 15-20 millimeters.
6. a kind of superhigh tenacity concrete as claimed in claim 1, it is characterised in that by the raw material preparation of following parts by weight
Into：
80 parts of portland cement, 18 parts of slag as aggregate, 13 parts of steel fibre, 13 parts of silica flour, 20 parts of fly ash micro-sphere, lithium slag 2
18 parts of glass fibre, the trimethylolpropane that part, 5 parts of latex, 13 parts of rubber powder, 6 parts of nanometer water adhesive, graphene are modified
1 part, 0.2 part of sulfoaluminate clinker, 5 parts of defoamer, 0.2 part of polyoxyethylene alkyl ether, 0.6 part of p-methyl benzenesulfonic acid, nano-silicon
2.5 parts of grain, 7 parts of nano-calcium carbonate, 20 parts of elastic silicone acrylic emulsion, N, 5 parts of N- dihydroxy ethyl -3- aminopropanoates, water 30
Part, 0.3 part of polycarboxylic acid water reducing agent.
7. a kind of superhigh tenacity concrete as claimed in claim 1, it is characterised in that by the raw material preparation of following parts by weight
Into：
90 parts of portland cement, 22 parts of slag as aggregate, 17 parts of steel fibre, 15 parts of silica flour, 40 parts of fly ash micro-sphere, lithium slag 3
25 parts of glass fibre, the trihydroxy methyl third that part, 9 parts of latex, 14 parts of rubber powder, 7 parts of nanometer water adhesive, graphene are modified
1.2 parts of alkane, 0.3 part of sulfoaluminate clinker, 7 parts of defoamer, 0.3 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.8 part, nanometer
8.5 parts of silicon grain, 13 parts of nano-calcium carbonate, 30 parts of elastic silicone acrylic emulsion, N, 8 parts of N- dihydroxy ethyl -3- aminopropanoates,
40 parts of water, 0.9 part of polycarboxylic acid water reducing agent.
8. a kind of superhigh tenacity concrete as claimed in claim 1, it is characterised in that by the raw material preparation of following parts by weight
Into：
85 parts of portland cement, 20 parts of slag as aggregate, 15 parts of steel fibre, 14 parts of silica flour, 30 parts of fly ash micro-sphere, lithium slag 2.5
Part, 21.5 parts of the glass fibre of 7 parts of latex, 13.5 parts of rubber powder, 6.5 parts of nanometer water adhesive, graphene modification, three hydroxyl first
1.1 parts of base propane, 0.25 part of sulfoaluminate clinker, 6 parts of defoamer, 0.25 part of polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid 0.7
Part, 5.5 parts of silicon nanoparticle, 10 parts of nano-calcium carbonate, 25 parts of elastic silicone acrylic emulsion, N, N- dihydroxy ethyl -3- alanine first
6.5 parts of ester, 35 parts of water, 0.6 part of polycarboxylic acid water reducing agent.
9. a kind of preparation method of superhigh tenacity concrete, it is characterised in that comprise the following steps：
S1, the formula as described in claim any one of 1-8 weigh each component；
S2, by the steel fibre weighed, graphene be modified glass fibre be dispersed in water by ultrasonic wave, formed suspension；
S3, by the slag as aggregate weighed, silica flour, fly ash micro-sphere, lithium slag, latex, rubber powder, silicon nanoparticle, nano-sized carbon
Sour calcium, elastic silicone acrylic emulsion are placed in high-speed shearing machine after being mixed evenly, and obtain mixture A；
S4, by the trimethylolpropane weighed, defoamer, polyoxyethylene alkyl ether, p-methyl benzenesulfonic acid, N, N- dihydroxy ethyls -3-
After aminopropanoate, nanometer water adhesive stir under 0.8-1MPa pressure with the suspension of gained, in 0.8-
Mixed material A is added under 1MPa pressure, the portland cement weighed, sulfoaluminate clinker are added after stirring, under normal pressure
Stir, obtain mixed material B；
S5, the water of half by the polycarboxylic acid water reducing agent weighed under 0.6MPa pressure with weighing are mixed evenly, and obtain
Mixed material C；
S6, the mixed material B that the mixed material C of gained is added to gained, with elevator by the mixture of gained after stirring
Material is conveyed into finished product and homogenized in storehouse, by being produced after homogenizing air homogenizing caused by orlop portion.
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| CN111620608B (en) * | 2020-05-25 | 2021-10-19 | 中铁大桥局集团有限公司 | Design method of ultrahigh-toughness cement-based composite material |
| CN111620608A (en) * | 2020-05-25 | 2020-09-04 | 中铁大桥局集团有限公司 | Ultrahigh-toughness cement-based composite material and design method thereof |
| CN111423192A (en) * | 2020-06-01 | 2020-07-17 | 中铁二局集团有限公司 | Method for improving deformation capacity of high-ductility concrete |
| CN112125613A (en) * | 2020-09-30 | 2020-12-25 | 合肥堂轩阁文化传媒有限公司 | Novel building engineering material |
| CN113968705A (en) * | 2021-11-10 | 2022-01-25 | 中铁十二局集团有限公司 | Multi-element gel system STC (concrete-time-dependent temperature) ultrahigh-toughness concrete material for bridge deck pavement |
| CN114477885A (en) * | 2022-02-21 | 2022-05-13 | 湖北旭合森混凝土科技有限公司 | Anti-cracking ultrahigh-performance concrete pole and preparation method thereof |
| CN114890742A (en) * | 2022-05-12 | 2022-08-12 | 湖州职业技术学院(湖州广播电视大学)(湖州社区大学) | Nano-material composite ultra-high performance concrete |
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